COMMUNICATION METHOD, AND COMMUNICATIONS APPARATUS AND SYSTEM

    公开(公告)号:US20220060868A1

    公开(公告)日:2022-02-24

    申请号:US17520135

    申请日:2021-11-05

    Abstract: This application discloses a communication method, and a communications apparatus and system, and is applied to the vehicle-to-everything V2X field, so that a terminal device can obtain an updated V2X parameter, to resolve a problem that communication fails because the terminal device uses an expired V2X parameter. The communication method includes: receiving, by a V2X control network element, parameter update indication information sent by a user data management network element, where the parameter update indication information is used to indicate that a V2X parameter of a terminal device is updated; and sending, by the V2X control network element, an updated V2X parameter to the terminal device based on the parameter update indication information.

    UNCREWED AERIAL VEHICLE COMMUNICATION METHOD AND COMMUNICATIONS DEVICE AND SYSTEM

    公开(公告)号:US20210321323A1

    公开(公告)日:2021-10-14

    申请号:US17358566

    申请日:2021-06-25

    Abstract: Example uncrewed aerial vehicle communication methods and apparatus are described. One example method includes a first access network device receives indication information used to indicate access information of a next hop of the uncrewed aerial vehicle, where the access information includes at least one of information about a second access network device or information about a cell of a second access network device. The first access network device sends a first request based on the indication information, where the first request is used to request the second access network device to prepare an access resource for the uncrewed aerial vehicle. The second access network device prepares the access resource for the uncrewed aerial vehicle after receiving the first request.

    Indirect Registration Method and Apparatus

    公开(公告)号:US20210195399A1

    公开(公告)日:2021-06-24

    申请号:US17192256

    申请日:2021-03-04

    Abstract: This application relates to the communications field, and discloses a communication method and a communications apparatus, so that a terminal device can register with a network through another network. The communication method is performed by a first access and mobility management function network element, including: receiving a first message from a terminal device, where the first message includes first identification information of the terminal device, and the first access and mobility management function network element is located in a first network; obtaining second identification information of the terminal device based on the first identification information; and sending a second message to a second access and mobility management function network element located in the second network, where the second message is used to request to register the terminal device with a second network, the second message includes the second identification information.

    COMMUNICATION METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20210029770A1

    公开(公告)日:2021-01-28

    申请号:US17066927

    申请日:2020-10-09

    Abstract: This application provides a communication method and apparatus, to resolve a problem that a PDU session of a terminal in an inactive mode fails to be activated. The method performed by a first core network device includes: sending first downlink information to a first RAN node, where the first downlink information is used by the first RAN node to activate a PDU session of a terminal, and the PDU session is in an inactive state; receiving indication information from the first RAN node, where the indication information indicates that the PDU session fails to be activated; and sending second downlink information to a second RAN node based on the indication information, where the second downlink information is used by the second RAN node to activate the PDU session of the terminal. This application relates to the field of communications technologies.

    COMMUNICATION METHOD AND COMMUNICATION APPARATUS

    公开(公告)号:US20200374828A1

    公开(公告)日:2020-11-26

    申请号:US16988927

    申请日:2020-08-10

    Abstract: This application discloses a communication method and a communications apparatus. The method includes: receiving, by a mobility management network element, a registration request message from a terminal, where the registration request message is used to request a vehicle-to-everything V2X configuration parameter for the terminal, and the V2X configuration parameter is used by the terminal to perform a V2X service; sending, by the mobility management network element, a parameter request message to a V2X parameter configuration network element based on the registration request message, where the parameter request message is used to request the V2X configuration parameter of the terminal from the V2X parameter configuration network element; and receiving, by the mobility management network element, the V2X configuration parameter from the V2X parameter configuration network element, and sending the V2X configuration parameter to the terminal. Use of this application helps improve security of the V2X service.

    COMMUNICATIONS METHOD AND APPARATUS
    56.
    发明申请

    公开(公告)号:US20200374139A1

    公开(公告)日:2020-11-26

    申请号:US16991378

    申请日:2020-08-12

    Abstract: This application discloses a communications method and apparatus. The method includes: receiving, by a terminal, a first system information block from a base station, where the first system information block includes encrypted time information, and the time information is used for synchronization of terminals in a key area in which the terminal is located; and decrypting, by the terminal, the encrypted time information based on a key of the key area in which the terminal is located. This application further discloses a corresponding apparatus. A base station uses a system information block to carry encrypted time information, and a terminal decrypts the encrypted time information based on a key of a key area in which the terminal is located, to implement secure transmission of the time information.

    Communications Method And Apparatus
    57.
    发明申请

    公开(公告)号:US20200187154A1

    公开(公告)日:2020-06-11

    申请号:US16790515

    申请日:2020-02-13

    Abstract: This application discloses a communications method and apparatus The method includes: receiving, by a radio access network (RAN) node, a first message from an access and mobility management function (AMF) node, where the first message includes specified area related information of a terminal device, and the specified area related information is used to indicate a specified area of the terminal device; and when the RAN node determines, based on the specified area related information and first location information of the terminal device, that the terminal device moves out of the specified area, sending, by the RAN node, the first location information or first indication information to the AMF node or an SMF node, where the first indication information is used to indicate that the terminal device already moves out of the specified area.

    COMMUNICATION METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20200077352A1

    公开(公告)日:2020-03-05

    申请号:US16676241

    申请日:2019-11-06

    Abstract: This application provides a communication method and a communications device. The method includes: obtaining, by a first communications device, authorization information, where the authorization information indicates that a second communications device is a device that needs to perform time synchronization; and providing, by the first communications device, time information for the second communications device based on the authorization information; or obtaining, by the first communications device, authorization information, where the authorization information indicates that the second communications device is not a device that needs to perform time synchronization; and skipping, by the first communications device, providing time information for the second communications device based on the authorization information, to avoid broadcasting the time information to all communications devices, so that a time synchronization service can be provided for a specific communications device.

    COMMUNICATION METHOD AND COMMUNICATIONS DEVICE

    公开(公告)号:US20200015131A1

    公开(公告)日:2020-01-09

    申请号:US16573768

    申请日:2019-09-17

    Inventor: Jiangwei YING

    Abstract: This application discloses a communication method and a communications device, to resolve a problem of how to select a session manage function (SMF) entity for user equipment (UE). The method includes: determining, by a first SMF entity based on status information, to select an SMF entity for UE; and sending, by the first SMF entity, an indication message to an access and mobility management function (AMF) entity, where the indication message is used to instruct the AMF entity to select an SMF entity for the UE.

    SECURITY NEGOTIATION METHOD, SECURITY FUNCTION ENTITY, CORE NETWORK ELEMENT, AND USER EQUIPMENT

    公开(公告)号:US20190132735A1

    公开(公告)日:2019-05-02

    申请号:US16233938

    申请日:2018-12-27

    Abstract: A security negotiation method includes: receiving, by a security function entity, an authentication request sent by a core network element, where the authentication request is generated by the core network element based on a request message of user equipment; performing, by the security function entity, Authentication and Key Agreement with the user equipment based on the authentication request, and generating a security parameter, where the security parameter includes a first key; receiving, by the security function entity, a key request sent by the core network element; and generating, by the security function entity, a security key between the core network element and the user equipment based on the key request and the first key. In the method, non-access stratum security for a 5G network architecture can be negotiated, thereby meeting a security requirement of a 5G network.

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